Encyclopedia of associations  : international organizations : 1993 : vol. 1 : descriptive listings 
/ ed. by Linda Irvin 
. - 27th ed. 
. - Detroit ;  London  : Gale Research Inc., 1993
. - pp. 1-1435 
<br/><br/><label>ISBN: </label>9780810380059 0810380056 
<br/><br/><label>Source: </label> Don du CCA 
<br/><br/><label>Universal Decimal Class. No.: </label>060.002.